The main topic covered is frequency control in power systems. The needed models are derived and the primary and secondary frequency control are studied. A detailed model of the synchronous machine, based on Park’s transformation, is also included. The excitation and voltage control of synchronous machines are briefly described. An overview of load models are also given

code for implementation FDTD3D with plane wave tf/ts

selfdelete 几个程序在 c + +。向自动删除文件从硬盘上......

石油勘探专业算法：地震资料波阻抗反演后期算法，包括带限反演算法和道积分反演算法两种-professional algorithm oil exploration : seismic data late wave impedance inversion algorithm, including band-limited anti-calculus and calculus Road-two points

一个简单的多线程的例子-a simple example Multithreading

较好的工程计算程序功能较强 计算桥梁的跨度等-better engineering calculation procedures more powerful calculation of the bridge span, etc.

哈夫曼编码是一种数据压缩技术，采用了二叉树和优先级队列两种数据结构。它的基本原理是，对数据重新编码，每个字符的编码的长度和它的出现频率呈反比，也就是出现次数多的字符它的编码要短。从而达到压缩数据的目的。

基于Boosting 算法的人脸检测,需要opencv，具体运行参见Readme，主要用于人脸的智能识别，只需要输出一张图就可以准确的判断其图中是否含有人脸，人脸的适量，位置，以及大小。非常使用

1-9数字填入三个分式的a-i中，使a/bc+d/ef+g/hi=1成立-1-9 the number of fill in the three fraction of ai, so that a/bc+ d/ef+ g/hi = 1 to set up

 采用C++语言编写的一种新的ＩＰ聚类算法。算法结合最长前缀匹配和最近邻规则聚类算法的概念，运用逐步优化的层次聚类的思想，自动并有意义地进行基于数据集中地址属性的无监督聚类。